Implement story 1.1: project scaffold and verified entry points

Creates the complete src/planemapper/ layout with all module stubs,
provisioning and renderer subpackages, airports.csv data bundle,
systemd unit files, and full test scaffold. All three quality gates
pass: pytest 12/12, ruff check zero violations, ruff format clean.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

tests/provisioning/test_config.py

@@ -0,0 +1,2 @@
+def test_placeholder() -> None:
+    pass

tests/provisioning/test_location.py

@@ -0,0 +1,2 @@
+def test_placeholder() -> None:
+    pass

tests/provisioning/test_provision_loop.py

@@ -0,0 +1,2 @@
+def test_placeholder() -> None:
+    pass

tests/provisioning/test_tiles.py

@@ -0,0 +1,2 @@
+def test_placeholder() -> None:
+    pass